公开(公告)号：US10513122B2

公开(公告)日：2019-12-24

申请号：US16039201

申请日：2018-07-18

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Jeffrey Allen Wagner ,  Maria Magdalena Martinez Ferrandiz ,  Ronald Albert Askeland ,  Marian Dinares Argemi ,  Chandrasekhar Nadimpalli

IPC: B41J2/175 ,  B41J2/005 ,  B41J2/165 ,  B41J2/04 ,  B41J2/14

Abstract: Methods and apparatus control the ejection of fluid from a nozzle by selectively actuating a fluid actuator that displaces and ejects fluid through an ejection orifice of the nozzle. The methods and apparatus at least partially closing the ejection orifice of the nozzle, while the fluid actuator is inactive, to reduce evaporation of the fluid.

公开(公告)号：US10046560B2

公开(公告)日：2018-08-14

申请号：US15500660

申请日：2014-07-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jeffrey Allen Wagner ,  Ronald Albert Askeland ,  Maria Magdalena Martinez Ferrandiz ,  Maria Dinares Argemi ,  Francisco Lopez Moral ,  Xavier Bruch ,  Chandrasekhar Nadimpalli ,  Xavier Gasso Puchal

IPC: B41J2/045

Abstract: Methods and apparatus to control a heater associated with a printing nozzle are disclosed. A method comprising controlling a heater associated with a printing nozzle to reduce a heat output of the heater based on a determination that the printing nozzle is outside a print area and printing an image on a substrate using other printing nozzles while the heat output of the heater is reduced.

公开(公告)号：US20180186157A1

公开(公告)日：2018-07-05

申请号：US15741241

申请日：2015-09-15

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Christopher Arend Toles ,  Joan Albert Jorba Closa ,  Ronald Albert Askeland

IPC: B41J11/00 ,  B41J3/407 ,  B41M5/00

CPC classification number: B41J11/0015 ,  B41J3/407 ,  B41M5/0011 ,  B41M5/0047 ,  B41M5/0064

Abstract: A print pre-treatment module is provided for printing an ink on a PVC print medium from a printer. The PVC print medium may have exudates on the surface. The pre-treatment module includes an impermeable material in rubbing contact with the PVC print medium, which is supported on a media roller conveying the print medium. Also disclosed herein are a printer incorporating the module and a method for reducing print defects on the PVC print medium.

公开(公告)号：US20170217185A1

公开(公告)日：2017-08-03

申请号：US15329029

申请日：2014-07-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jeffrey Allen Wagner ,  Francisco Lopez Moral ,  Maria Magdalena Martinez ,  Xavier Bruch ,  Chandrasekhar Nadimpalli ,  Xavier Gasso Puchal ,  Marian Dinares Argemi ,  Ronald Albert Askeland

IPC: B41J2/165

Abstract: A printing system may comprise a page wide array printhead a capping station, and a number of modular caps comprising a housing to cover a nozzle array of a printhead and a cap coupler coupled to the housing to couple the cap to the nozzle array in which the modular caps are adapted to be coupled to and removed from the nozzle array of the printhead and stored in the capping station.

公开(公告)号：US20170210137A1

公开(公告)日：2017-07-27

申请号：US15329498

申请日：2014-07-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jeffrey Allen Wagner ,  Ronald Albert Askeland ,  Maria Magdalena Martinez ,  Paul Joseph Bruinsma ,  Sierra Lynn Triebe

IPC: B41J2/165

CPC classification number: B41J2/16552 ,  B41J2/16505 ,  B41J2/16538 ,  B41J2/1753 ,  B41J2002/16558

Abstract: An immiscible fluid distribution system applies immiscible fluid to the nozzles of a printhead to at least partly cap unused nozzles during printing. A printer subassembly may comprise an immiscible fluid distribution system to apply an immiscible fluid to the surface of a printhead nozzle plate. A method of capping a printhead may comprise applying a layer of immiscible fluid to nozzles of a printhead and selectively ejecting a fluid from a first subset of nozzles while not ejecting fluid from a second subset of nozzles that are at least partially capped with the immiscible fluid.

公开(公告)号：US20170210128A1

公开(公告)日：2017-07-27

申请号：US15329401

申请日：2014-07-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jeffrey Allen Wagner ,  Sierra Lynn Triebe ,  Maria Magdalena Martinez ,  Ronald Albert Askeland

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/162 ,  B41J2/17533 ,  B41J2/17536 ,  B41J2/1754 ,  B41J2/17559

Abstract: A method of preparing a printer cartridge for transport may comprise applying a volume of immiscible fluid to a nozzle bore of a printhead. A printer cartridge may comprise a volume of immiscible fluid deposited into a nozzle bore of a nozzle of the printhead and a layer of immiscible fluid applied over the nozzle bore opening. A printhead die may comprise a volume of immiscible fluid deposited into a nozzle bore of the die and a layer of immiscible fluid applied over the nozzle bore opening.